Improvement in bobbins



J. T. BLAVELT & B. MORTIMER.

BOBBINS.

No.179,510. Patented July 4, l1876.

Inv-@12 Zora 'MQNXM A N. PETERS, PHOTO-LITHOGRAFHER. WGHINGYON, C4

UNITED STATE-s PATENT OEEIcE.

JACOB T.Y BLAUVELT AND BENJAMIN MORTIMER, OF PATERSON, NEW JERSEY, ASSIGNORS TO THE DANFORTH LOCOMOTIVE AND'MACHINE COMPANY, OF SAME PLACE.

IMPROVEMENT IN BOBBINS.

Specification forming part of Letters Patent No. 179,510, dated July 4, y1876; application filed February 16, 1876.

To all whom it may concern:

Be it known that we, JACOB T. BLAUVELT and BENJAMIN MOETIMER, of Paterson, Passaic county, New Jersey, have invented certain new and useful Improvements Relating' to Bobbins, ot' which the following is a speciication:

Our improved bobbins are intended more particularly for receiving silk,j which requires to be steamed, and in which manufacture, in consequence of the value of the textile material, the loss from any deran gement thereotl is particularly serious. The bobbins ordinarily used, formed in whole or in part of wood, are liable to change their dimensions, and to split under the severe changes' ot' temperature and moisture to which they are exposed. When formed with metallic ends they are liable to open a joint between the body and the ends, and the ends, being made ot' sheetmetal, are liable to bend when the bobbin is dropped on the iioor.

We make a bobbin of a single casting of hard brass, peculiarly adapted to fulfill all the conditions.

The accompanying drawings form a part of this specification, and represent what we consider the best means of carrying out the invention.

Figurel is a central longitudinal section through a full bobbin. Fig. 2 is a cross-section on the line S S in Fig. l.

Similar letters of reference indicate like parts in both the figures.

A is a single casting, preferably of brass. It is adapted to revolve on short, nicely-turned extensions, forming part of the same casting. Apertures a, in each end, communicate with 'a i large cylindrical cavity,a1, in to which are bored inner surface of the silk, permeates the mass almost as rapidly and thoroughly from the inner as from the outer face.

The metal should be sufficiently hard and stiff, and the rims sufticiently thick, to withstand the fall of a bobbin, loaded orempty, upon a hard iioor. ,f

We find that the interior of the cavity al, and the large end apertures a, may be formed by what is sometimes called green sand-coring.77 The holes c2 we produce by drilling.

The device may be used with some success without the longitudinal grooves a3; but the steam finds access more rapidly and evenly by reason of theirintroduction.

We claim as our invention- As a new article ot' manufacture. the hereindescribed bobbin, formed of metal cast in one piece, recessed, and perforated, as shown, for the purposes set forth.

In testimony whereof we have hereunto set our hands this 8th day of February, 1876, in the presence ot two subscribing witnesses. JACOB T. BLAUVELT.

BENJAMIN MORTIMER.

Witnesses: I

ROBERT M. TAGGAET, JACOB VAN WINKLE. 

